Find the argument of the complex number -3–9 in the interval 0°< ϴ < 360°, rounding to the nearest tenth of a degree if necessary.

Step-by-step explanation:

Complex Numbers

They are expressed as the sum of a real part and an imaginary part:

Complex numbers can also be expressed in polar form:

Where r is the modulus of the complex number and θ is the argument.

The argument can be calculated by:

The angle θ must be calculated in the appropriate quadrant depending on the signs of the real and imaginary parts.

The complex number is given as:

Here: a=-3, b=-9

Since both components are negative, the argument lies in the third quadrant (180° < θ < 270°).

The calculator gives the answer 71.6°, we need to adjust the angle to the third quadrant by adding 180°, thus

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.